Zoo Med BettaTherm 7.5W Submersible Heater for Betta Fish Bowls & Small Aquariums - Perfect for Tropical Fish Tanks & Desktop Aquascaping

Features

Completely Submersible Mini Size Betta Bowl Heater

Now with Thermal Shut Off at 26 degrees Celcius

Increases water temperature 5 to 10 degrees Fahrenheit over ambient room temperature

Fits most fish or Betta bowls

Can be used on both glass and acrylic tanks